RE: decompression, seriously disconnect from the web. I spent most of last night in my shop playing with guns, building a shelf, and having nothing by my cell (in case of spontaneous combustion) and a non-internet connected media computer. If someone tried to text me about it, call wanting to talk about it, whatever I just didn't respond, or in one case sent a not-nice photo back to the sender. Tragedy is out there 24/7, but everyone is much more connected, aware, and the media is zero'd in on tragedy and big scary terrorists right now.
To take a page from a friend's facebook, I'd say now is time to emulate the British during the Battle of Britain (and the rest of the World Wars where they got the shit shelled/bombed out of them and kept calm and soldiered on) and keep goign to work. Don't ignore bad things, but sure as hell don't let them rule you. Let me share this:
"Criminal acts intended or calculated to provoke a state of terror in the general public, a group of persons or particular persons for political purposes are in any circumstance unjustifiable, whatever the considerations of a political, philosophical, ideological, racial, ethnic, religious or any other nature that may be invoked to justify them."
That's from the UN general Assembly's definition of Terrorism. All else be damned, interruption of the daily life of the American people is the goal of terrorism on US soil. Letting that fear, that terror, that worry overcome you, drain you, rule you will only serve to empower other groups.
This will not be the last bombing, nor is it the first. More people were killed in the Waco-area fertilizer factory, in DUIs, by bees than by the actions of a couple of nutjobs with some pipe bombs of stolen weapons. Only thing we can do is help those who need it, and pack our bags (figuratively) for the next one. Time wasted screaming for blood can be better spent preparing and helping other prepare.
Edited because nightbrain is teh dumbrain and we could really learn from Churchill's Londoners.